Rotating shaft type single-dose capsule type powder inhaler

Abstract

The utility model relates to a rotating shaft type single-dose capsule type powder inhaler, and belongs to the field of medical instruments. Comprising an outer cover, a suction nozzle, a base and a push button assembly. Wherein an integrated rotating shaft structure is arranged at the lower end of the suction nozzle, an embedded C-shaped embracing ring is arranged on one side of the upper end of the base, the embracing ring and the base are of an integrated structure, and the rotating shaft is matched with the embracing ring so that the suction nozzle can be rotationally fixed to the base along the horizontal axis. By the adoption of the structure, the installation steps of the whole inhaler are simplified, the installation process is faster and more convenient, meanwhile, the number of needed parts is reduced, and the production cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a single dose capsule type powder inhaler, especially to a pivot type medicinal inhaler device which is opened and used along the horizontal direction axis. BACKGROUND

[0002] In the technical field of dry powder inhaler, there are various pivot type single dose capsule type powder inhalers. The common single dose capsule type powder inhaler on the market comprises a base, a suction nozzle and a cover structure, a needle push button is arranged on the base for piercing the capsule to release the powder, and the suction nozzle is connected with the base, and the suction nozzle is pivotally opened or closed by the transverse or longitudinal pivot structure, so that the capsule can be taken out or put in. During use, the capsule compartment in the base is exposed by rotating the suction nozzle, and the suction nozzle is still connected to the base by the pivot structure, then the capsule is placed in the capsule compartment, the suction nozzle is closed, the needle push button is pressed to pierce the capsule, so that the powder can be scattered from the capsule, the airflow in the base is changed by the suction nozzle, the powder is separated from the capsule and enters the patient's body, then the capsule compartment in the base is exposed by opening the suction nozzle, the used capsule shell is taken out, and finally the suction nozzle and the cover are returned to the original position for the next use.

[0003] The common pivot structure on the market is a longitudinal pivot, so that the suction nozzle rotates along the longitudinal axis when rotating. When the patient uses it for the first time without reading the instruction manual, the suction nozzle of the inhaler may be rotated along the horizontal axis, and the stress point of the device is only on the cross section of the pivot, which is relatively weak and easy to damage the device.

[0004] The transverse pivot structure enables the suction nozzle to rotate along the transverse axis, which is more in line with the user's subjective use habit, but the mature products on the market cannot integrate the pivot part with other fixed structures, resulting in more device parts, higher device cost, complex installation steps and longer installation time of a single device. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide a pivot type single dose capsule type powder inhaler which is quick and convenient to install.

[0006] A kind of rotation shaft type single dose capsule type powder inhaler, comprising: including outer cover, suction nozzle, base and push button assembly, wherein: the outer cover is detachably set on the periphery of the suction nozzle;The recess space is arranged in the inside center of the base as capsule store, and the airflow channel that is centrally symmetric is arranged around the capsule store;At least one set of the push button assembly is provided in the device, and each set of the push button assembly includes piercing element, reset element and push button shell, the piercing element and the reset element are fixed on the push button shell, and the push button assembly is linearly movably fixed on the side end of the base;The suction nozzle is provided as a through-hole structure, the lower end of the through-hole is provided as a grid-shaped filter screen, and one side of the lower end of the suction nozzle is provided with an integrated rotation shaft structure.

[0007] Further, one side of the upper end of the base is provided with a recessed holding ring, and the holding ring cooperates with the rotation shaft.

[0008] Further, the holding ring and the base are an integrated structure.

[0009] Further, a one-sided suction nozzle flow channel wall is provided between the lower end of the suction nozzle and the rotation shaft.

[0010] Further, a one-sided base flow channel wall is provided at the upper end of the base, and the base flow channel wall is on the opposite side of the suction nozzle flow channel wall.

[0011] Preferably, the suction nozzle flow channel wall and the base flow channel wall are in a central symmetric relationship on the same plane.

[0012] Further, the suction nozzle and the filter screen are an integrated structure.

[0013] Preferably, the piercing element is a three-edged needle.

[0014] Preferably, the reset element is a compression spring.

[0015] Preferably, the length of the internal through-hole of the suction nozzle is 3-4 cm.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The suction nozzle and base structure of the utility model make the rotation shaft structure integrated into each part, so that an external component is not needed as a receiving shaft to complete the connection and fixation between the suction nozzle and the base, reducing the number of parts of the device and saving production costs.

[0018] 2. The rotation shaft and holding ring cooperation method of the utility model allows the suction nozzle to be fixed with the base in one step, simplifying the installation steps of the device and making the device installation faster and more convenient. Meanwhile, the embedded C-shaped holding ring allows the overall device to have a smoother and more regular appearance without affecting the rotation range of the suction nozzle. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and / or additional aspects and advantages of the present utility model will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings in which:

[0020] Figure 1 is a perspective structure exploded schematic view of a rotating shaft type single dose capsule type powder inhaler according to a preferred embodiment of the present utility model;

[0021] Figure 2 is a schematic view of a suction nozzle structure according to a preferred embodiment of the present utility model;

[0022] Figure 3 is a schematic view of a base structure according to a preferred embodiment of the present utility model;

[0023] Figure 4 is a schematic view of a rotating shaft type single dose capsule type powder inhaler open state structure according to a preferred embodiment of the present utility model;

[0024] Figure 5 is a longitudinal sectional view of a rotating shaft type single dose capsule type powder inhaler according to a preferred embodiment of the present utility model;

[0025] Figure 6 is a transverse sectional view of a rotating shaft type single dose capsule type powder inhaler according to a preferred embodiment of the present utility model;

[0026] Figure 7 is a longitudinal sectional view of a rotating shaft type single dose capsule type powder inhaler in a first direction according to a preferred embodiment of the present utility model;

[0027] Wherein: 1-outer cover, 2-suction nozzle, 3-base, 4-push button assembly, 5-piercing element, 6-resetting element, 7-push button shell, 8-air flow channel, 21-rotating shaft, 22-filter screen, 23-suction nozzle flow channel wall, 31-holding ring, 32-capsule compartment, 33-base flow channel wall. DETAILED DESCRIPTION

[0028] The following description is presented to enable any person skilled in the art to practice the present utility model. The preferred embodiments in the following description are only examples and other obvious variants can be conceived by those skilled in the art.

[0029] Figures 1 to 7The utility model discloses a kind of preferred embodiments of the rotatable shaft type single-dose capsule type powder inhaler, and same as traditional structure is, it also includes: outer cover 1, suction nozzle 2, base 3, push button assembly 4 and the like structural members. Among them: suction nozzle 2 is fixed with base 3 upside and downside, outer cover 1 is sleeved in the periphery of suction nozzle 2, push button assembly 4 is two in the device, and is fixed on the both sides of base 3. Push button assembly 4 includes piercing element 5, reset element 6 and push button shell 7, piercing element 5 is specifically adopted as three-edge needle in this embodiment, reset element 6 is specifically adopted as compression spring in this embodiment, and piercing element 5 is coaxially fixed on push button shell 7 with reset element 6.

[0030] As shown in Figures 2-5 Suction nozzle 2 is provided as a through-hole structure, the lower end of the through-hole is a mesh filter 22, and a suction nozzle flow passage wall 23 is further provided on the suction nozzle 2. An integrated rotating shaft 21 is arranged at the lower end of the suction nozzle flow passage wall 23. A recess space is arranged in the center of the base 3 as a capsule compartment 32 for placing powder capsules. An embedded C-shaped clamping ring 31 is arranged on one side of the base 3. The clamping ring 31 and the base 3 are in an integrated structure. A base flow passage wall 33 is arranged at the upper end of the base 3 opposite to the clamping ring 31. The clamping ring 31 cooperates with the rotating shaft 21 to enable the suction nozzle 2 to be fixed on the base 3 through convenient and fast buckling operation. After being fixed, the suction nozzle 2 can rotate along the horizontal axis of the rotating shaft 21, thereby achieving the purpose of opening and closing the capsule compartment 32.

[0031] As shown in Figures 6-7 When the suction nozzle 2 and the base 3 are installed and fixed, and in the closed state of the suction nozzle 2, the suction nozzle flow passage wall 23 and the base flow passage wall 33 are in a central symmetric relationship with the capsule compartment 32 as the center, and cooperatively form a spiral airflow passage 8. Small holes are further arranged at the end point positions of the capsule compartment 32 close to the push button assembly 4. The small holes enable the piercing element 5 to enter the capsule compartment 32, break the powder capsule, and enable the powder in the capsule to fall into the device.

[0032] In the use process of the device, the patient rotates the suction nozzle 2 to open it, exposes the position of the capsule compartment 32 in the base 3, and closes the suction nozzle 2 after placing the powder capsule in the capsule compartment 32. The push button assembly 4 on both sides of the base 3 is pressed, so that the piercing element 5 enters the capsule compartment 32 to pierce the capsule. When the patient releases the push button assembly 4, the reset element 6 resets the push button assembly 4 by using the characteristics of the compression spring, and the piercing element 5 exits the capsule compartment 32. At this time, the patient inhales deeply through the suction nozzle 2. The external air flows into the capsule compartment 32 through the spiral airflow passage 8 to form a vortex. The vortex drives the powder capsule to rotate, so that the powder falls or is thrown out of the capsule. The filter 22 ensures that the possibly caked powder becomes fine powder that is easier for the human body to absorb, and finally enters the patient's body through the suction nozzle 2.

[0033] In the description of the utility model, it is understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship, which is only for the convenience of the simplified description of the utility model, and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, in the description of the utility model, "a plurality of" means two or more, unless otherwise specifically limited.

[0034] The basic principle, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only the principles of the utility model. Without departing from the spirit and scope of the utility model, various changes and improvements can be made to the utility model, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims

1. A rotating shaft type single-dose capsule powder inhaler, characterized in that, The device includes an outer cover, a nozzle, a base, and a push button assembly. The outer cover is detachably fitted around the nozzle. The base has a central recessed space serving as a capsule chamber, and symmetrical airflow channels are arranged around the capsule chamber. The device includes at least one set of push button assemblies, each set containing a puncture element, a reset element, and a push button shell. The puncture element and the reset element are fixed to the push button shell, and the push button assembly is linearly movable and fixed to the side of the base. The nozzle has a through-hole structure, with a mesh-like filter at the lower end of the through-hole, and an integrated rotating shaft structure on one side of the lower end of the nozzle.

2. The rotary single-dose capsule powder inhaler according to claim 1, characterized in that, A recessed C-shaped retaining ring is provided on one side of the upper end of the base, and the retaining ring cooperates with the rotating shaft.

3. A rotary single-dose capsule-type powder inhaler according to claim 2, characterized in that, The retaining ring and the base are an integral structure.

4. A rotary single-dose capsule-type powder inhaler according to claim 1, characterized in that, A single-sided suction channel wall is provided between the lower end of the suction nozzle and the rotating shaft.

5. A rotating single-dose capsule-type powder inhaler according to claim 4, characterized in that, The upper end of the base is provided with a base flow channel wall on one side, and the base flow channel wall is opposite to the flow channel wall of the suction nozzle.

6. A rotary single-dose capsule-type powder inhaler according to claim 5, characterized in that, The suction nozzle channel wall and the base channel wall are centrally symmetrical on the same plane.

7. A rotary single-dose capsule-type powder inhaler according to claim 1, characterized in that, The suction nozzle and the filter screen are integrated into one piece.

8. A rotary single-dose capsule-type powder inhaler according to claim 1, characterized in that, The piercing element is a triangular needle.

9. A rotating shaft type single-dose capsule powder inhaler according to claim 1, characterized in that, The reset element is a compression spring.

10. A rotary single-dose capsule-type powder inhaler according to claim 1, characterized in that, The length of the internal through hole of the suction nozzle is 3-4 cm.

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